S
M
T
W
T
F
S
26
76°
67°
27
79°
66°
28
76°
66°
29
75°
66°
30
72°
64°
1
73°
67°
2
73°
65°
3
72°
61°
4
72°
63°
5
73°
64°
6
74°
65°
7
76°
68°
8
76°
69°
9
75°
68°
10
78°
65°
11
79°
67°
12
79°
69°
13
81°
70°
14
81°
67°
15
75°
65°
16
76°
65°
17
79°
68°
18
80°
69°
19
80°
68°
20
81°
67°
21
76°
66°
22
77°
67°
23
78°
71°
24
77°
70°
25
81°
72°
26
82°
72°
27
83°
71°
28
85°
68°
29
81°
73°
30
83°
74°
31
85°
71°
1
84°
74°
2
85°
72°
3
86°
74°
4
86°
74°
5
84°
73°
6
85°
69°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Mount Pleasant
Mount Pleasant's May 2026 forecast shows daily high temperatures ranging from 72° to 86°, with overnight lows between 61° and 74°. The average high for May is 79° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Mount Pleasant. See also: June | July | August.
